Mozilla Firefox up to 145 DOM Notifications Remote Code Execution

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.0 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in Mozilla Firefox up to 145. The impacted element is an unknown function of the component DOM Notifications Component. Such manipulation leads to Remote Code Execution. This vulnerability is traded as CVE-2025-14323. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.
Details
A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 145. Affected by this issue is an unknown code block of the component DOM Notifications Component. The manipulation with an unknown input leads to a remote code execution vulnerability. Impacted is confidentiality, integrity, and availability. CVE summarizes:
Privilege escalation in the DOM: Notifications component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.
The advisory is shared for download at bugzilla.mozilla.org. This vulnerability is handled as CVE-2025-14323 since 12/09/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/06/2026).
The vulnerability scanner Nessus provides a plugin with the ID 278145 (RHEL 9 : firefox (RHSA-2025:23034)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 146 eliminates this vulnerability.
The vulnerability is also documented in the databases at Tenable (278145) and CERT Bund (WID-SEC-2025-2812). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Affected
- Debian Linux
- Amazon Linux 2
- Red Hat Enterprise Linux
- SUSE Linux
- Oracle Linux
- SUSE openSUSE
- RESF Rocky Linux
- Mozilla Firefox
- Mozilla Firefox ESR
- Mozilla Thunderbird
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Remote Code ExecutionCWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 278145
Nessus Name: RHEL 9 : firefox (RHSA-2025:23034)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Firefox 146
Timeline
12/09/2025 Advisory disclosed12/09/2025 CVE reserved
12/09/2025 VulDB entry created
01/06/2026 VulDB entry last update
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: bugzilla.mozilla.org
Status: Confirmed
CVE: CVE-2025-14323 (🔒)
GCVE (CVE): GCVE-0-2025-14323
GCVE (VulDB): GCVE-100-335144
CERT Bund: WID-SEC-2025-2812 - Mozilla Firefox: Mehrere Schwachstellen
Entry
Created: 12/09/2025 14:51Updated: 01/06/2026 14:32
Changes: 12/09/2025 14:51 (54), 12/10/2025 15:54 (7), 12/10/2025 16:34 (1), 12/11/2025 06:10 (2), 12/11/2025 14:57 (1), 12/23/2025 09:41 (1), 01/06/2026 14:32 (1)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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